METHOD TO PRODUCE PROTEIN E7-HSP70 AND YEAST STRAIN Saccharomyces cerevisiae FOR ITS REALISATION Russian patent published in 2013 - IPC C12N1/19 C12N15/62 C12N15/81 C07K14/35 C07K14/01 A61P31/20 

FIELD: biotechnologies.

SUBSTANCE: microorganism-producent is cultivated in a suitable nutrient medium with subsequent extraction and treatment of target protein. At the same time the producent is yeast strain Saccharomyces cerevisiae, transformed with the expression vector, which contains an area of initiation of replication of endogenic 2-mcm plasmid of yeast Saccharomyces cerevisiae, and also a yeast promotor GAL1, which controls gene expression, including a DNA sequence SEQ ID NO: 1, coding a fused protein, the composite parts of which are aminoacid sequences of the protein E7-HSP70 and the protein of ubiquitin of yeast Saccharomyces cerevisiae, occupying within the fused protein an N-end position ending with a processing site, which separates it from the sequence of the protein E7-HSP70 and recognised natural ubiquitin-specific yeast proteinases. The yeast strain Saccharomyces cerevisiae VKPM Y-3853 - producent of the protein E7-HSP70 - is produced by transformation with the expression vector pPDX3U-E7-HSP70 of the yeast strain Saccharomyces cerevisiae D702.

EFFECT: group of inventions provides for high level of biosynthesis and yield of treated protein E7-HSP70, production of a water-soluble correctly processed protein E7-HSP70, principal absence of toxic and pyrogenic bacterial LPS in preparations of the protein E7-HSP70.

2 cl, 4 dwg, 12 ex